Application Notes: Monitoring Motor Amperage

Monitoring Motor Amperage

Theory of operation for analog current sensors:

Measuring amperage on a motor or other load can provide a rough estimate of the loading on the motor. True motor loading can only be measured with a power or kW transducer (see power metering section). The VERIS 720 and 920 series analog current sensors provide industry-standard voltage or current outputs proportional to the current flowing in the sensed conductor. This output can then be converted to reflect motor amps using software scaling in the automation system panel.

Applications are suggestions. Field applications vary; since manufacturer does not install the devices, it is up to the installer to ensure suitability and compliance to appropriate codes.